Snubber



' Jan, 13,1925; 1,522,826

f E. T. MARTIN SNUBBER Filed June 18, 1923 Patented dan. i3, 19235,

PATENT EARL T. IvIAETIN, 0E PROCTOR. EJINNESOTA.

SNUBBER.

Application filed June 18, 1923. Serial No. 646,049.

T0 all whom t may concern Be it known that T, Earn. T. MARTIN, a, citizen of the United States, residing at Proctor', in the county of St. Louis and State of Minnesota, have invented certain new and useful Tmprovements in Snubbers, of which the following is a specication, reference being had therein to the accompanying drawing.

This invention relates to tension devices, principally for vehicles, and commonly referred to as snubbers, that is to say means whereby the respondent action of the vehicle chassis to that of the springs upon which it is mounted is automatically retarded.

The principal object of the invention is to provide a simple and durable device of this character.

Other objects and advantages of the peculiar construction will appear in the further description of the invention.

Referring no-w to the accompanying drawing formingl part of this application in which like reference characters indicate like parts:

Figure 1 is a broken vertical section through one of the improved snubbers as applied to parts of a vehicle; and

Figure 2 is a side elevation of same.

1 and 2 represent the intermittent reciprocable parts of a vehicle or other mechanism as the case may be, the relative distance therebetween being susceptible to change by, for example, the action of a spring, and 8 represents a cylindrically shaped drum suspeuded between the parts 1 and 2. The drum is hollow, open at one end, closed at the other, and has two narrow annular rccesses 4 adjacent the ends thereof, in which recesses are placed the loops of the fabric suspending devices, which are preferably folded or doubled longitudinally and extend up over the member 1 as at (i. J ust beneath this member are two horizontally disposed clamp irons 7 which are united by suitable bolts S and held in taut engagement with the fabric as well as up comparatively snugly against the under side of the member 1, making neat suspending device for the drum 3.

Intermediate of the recesses 4 is formed a wider recess 9 in which is wound, say one or more times, the fabric connecting strap 10 which is connected as at 11 to the member 2. This strap is wound or unwound on the drum 3 as the latter is alternately operated. The drum 3 is maintained in what may be termed its wound up position by the action of the helical spring 12, which is rigidly and non-rotatably fixed to the end 18 of the drinn 3, as at 1t, while the opposite end of the spring 12 extends outwardly of the drum and up intermediate of the clamping members 7, as at 15, where it is bent at right angles and suitably held within one of the clamping members. This spring thus having one end fastened to a stationary object in respect to the drum will at all times keep the drum in its wound up position with tension upon the suspending and connecting members wound about the drum.

lllhen separating action occurs in respect to the members 1 and 2 it is apparent that the frictional contact of the loops 5 about the drum will tend to prevent its rotation while the taut connection of the strap or band 10 will tend to unwind same, thus prcventing sudden separation of the members 1 and 2` and instantly, upon relaxation of the unwinding effect of the strap, the action of the spring 12 will restore the drum to its wound condition.

Thus when sudden stress ,is applied to the strap 10, the drum will quickly but interruptedly unwind a portion only of the strap on account of the frictional engagement of the loops adjacent the ends of the drum, ther(L by preventing a sudden separation of the parts 1 and 2.

The frictional contact of the loops 5 may he governed by the position or size of the clamp 7, or the relative width between them and the wider strap 10, or the relative depths of the annular grooves on the drum may accomplish the same results.

Having thus described my invention, what T claim and desire to secure by Letters Patent, is:

1. The combination with two variably spaced elements, of a drum intermediate thereof, a fabric support for the drum rotatably attaching it to one of the elements, and a second fabric for attaching it to thc other element whereby the drum is rotated in one direction by the separation of the elements, and a spiral spring internally of the drum for maintaining it in normal position with the fabric attachments taut, one end of said spring being fixed to one of the elements and the opposite end to the drum.

2. The combination with two variably spaced elements, of a drum intermediate thereof and frictionally supported by one of llO vconnection therewith andattached tothe opposite element, and means for normally holding the drum with the ce'nterrnost fabric wound tightly thereabouts.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

, n EARL T. MARTIN. Witnesses S. C. BRoNsoN, S. GEO. STEVENS. 

